Is CVE-2025-66216 actively exploited?

No active exploitation of CVE-2025-66216 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2025-66216 be exploited remotely?

Yes. CVE-2025-66216 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2025-66216?

CVE-2025-66216 has a CVSS score of 9.8 (CRITICAL).

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CRITICAL

CVE-2025-66216

CWE-131Published: November 29, 2025· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

AIS-catcher is a multi-platform AIS receiver. Prior to version 0.64, a heap buffer overflow vulnerability has been identified in the AIS::Message class of AIS-catcher. This vulnerability allows an attacker to write approximately 1KB of arbitrary data into a 128-byte buffer. This issue has been patched in version 0.64.

NVD Source

Risk Analysis

This critical heap buffer overflow vulnerability in AIS-catcher allows an attacker to write approximately 1KB of arbitrary data into a smaller buffer. This could lead to remote code execution or denial of service, indicated by a CVSS score of 9.8.

No public exploit is currently known for this vulnerability. However, its network-exploitable nature and low attack complexity make it a significant concern.

Recommended Action

Upgrade AIS-catcher to version 0.64 or later to patch this vulnerability. Ensure all input data is properly validated and bounds-checked to prevent buffer overflows.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2025-66216 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.